Question

x³+y³+z³=8
SOLVE IT
WITH EXPLAIN​

Answer 1

Answer:

⇒x3+y3+z3=(12)(96−24)+2=12∗72+2=866 

Step-by-step explanation:

Given x+y+z=12

Squaring it we get

x2+y2+z2+2(xy+yz+zx)=144

Therefore xy+yz+zx=24

Also 1/x+1/y+1/z=36

Implies (xy+yz+zx)/xyz=36

⇒xyz=(xy+yz+zx)/36=24/36=2/3

We know (x3+y3+z3)=(x+y+z)(x2+y2+z2−xy−yz−zx)+3xyz

⇒x3+y3+z3=(12)(96−24)+2=12∗72+2=866 

Answer 2

Step-by-step explanation:

I hope it will help you

thank you

we have to verify LHS =RHS